Your system seems to be in a conflicting state where your /etc/apt/sources.list file contains entries for Xenial, Ubuntu 16.04, yet lsb_release indicates you are running Zesty (Ubuntu 17.04). Please resolve this situation by either fixing your /etc/apt/sources.list file or installing the lsb-release package for Ubuntu 16.04.
Your system seems to be in a conflicting state where your /etc/apt/ sources. list file contains entries for Xenial, Ubuntu 16.04, yet lsb_release indicates you are running Zesty (Ubuntu 17.04). Please resolve this situation by either fixing your /etc/apt/ sources. list file or installing the lsb-release package for Ubuntu 16.04.